A poll by the Pew Research Center came out last month asking Americans how they felt about our institutions, such as banks, churches, the media, labor unions and colleges and universities. The ...

The negative of lead aVR (R for right arm) is at +30 degrees; the positive of lead aVR is actually at -150 degrees. Although memorizing the above picture is crucial to accurately determining axis ...

It's a bit simplistic, but you can think of the Rh factor as a protein that is either present (positive) or absent (negative) on red blood cells. Exact percentages vary with race, but most people ...